I have tried a couple local car shops but they only have racing vids of the E36 M3. Considering the amount of races the E30 M3 won in it time I'll bet there is a ton of footage somewhere.

anthony

I have made a compilation tape with like 6 hours of BMW/ BMW Motorsport footage. It includes : Speedvisions History of BMW M sport 1,2,3 and BMW M Power. The rest is BTCC and Rally racing footage of the E30 M3 87-92.